Home / 245,817.20-339,228.28-136,920.66

Finding the Fourth Proportional to 245,817.20, 339,228.28 and 136,920.66

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Solution

The fourth proportional to 245,817.20, 339,228.28 and 136,920.66 is: 188,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,817.20 : 339,228.28 = 136,920.66 : x
  2. Step 2: Convert to fraction form
    245,817.20/339,228.28 = 136,920.66/x
  3. Step 3: Cross multiply
    245,817.20x = 339,228.28 × 136,920.66
  4. Step 4: Simplify right side
    245,817.20x = 46,447,359,988.26
  5. Step 5: Solve for x
    x = 46,447,359,988.26/245,817.20
  6. Step 6: Final answer
    x = 188,950.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.